> I don't know what DC Blox was going to put in this particular datacenter, but they are a "traditional" colocation datacenter company. Maybe this one would've been superdense GPUs...
50 MW for 69k square feet definitely points to relatively dense GPUs. Regardless of what DC Blox might have built five years ago, everyone knows what kind of datacenter is going to be booked solid right now.
The initial phase of construction (what DC Blox initially applied for permits for) is for 69k square feet at 10 MW.
But that is only a corner of the property that DC Blox acquired. Other documents filed during the permitting process include their long-term plan for the property, and that's where the 50 MW number comes from-- two buildings totaling 345k square feet of data center space, a 72k square foot electrical substation, plus support facilities (parking, guard houses, etc.).
As modern datacenters go, 69,000 sq ft for a whole facility is REALLY small. Only some portion of that 69k is going to be actual conditioned space once you subtract all the ancillary services, things like security office, staging area, bathrooms, electrical breaker panel rooms, etc. It's almost like boutique/niche sized compared to the things that are going up in Texas, Indiana, a few other places. I know people building hyperscale size stuff that would almost call 69k sq ft hobby sized.